Definitely my experience in the U.S. also. Buildings are built to meet minimum code, including the amount of sound allowed to pass through walls between units.

Definitely my experience in the U.S. also. Buildings are built to meet minimum code, including the amount of sound allowed to pass through walls between units. Minimum code is nowhere near good enough to block any amplified music/sound, much less if you're unfortunate enough to share a wall/floor/ceiling with a neighbor with a powerful subwoofer.